added bounds to dependencies

Author: torfjelde

Project.toml

@@ -5,7 +5,6 @@ version = "0.1.2"
 [deps]
 Combinatorics = "861a8166-3701-5b0c-9a16-15d98fcdc6aa"
 Distributions = "31c24e10-a181-5473-b8eb-7969acd0382f"
-FiniteDifferences = "26cc04aa-876d-5657-8c51-4c34ba976000"
 ForwardDiff = "f6369f11-7733-5829-9624-2563aa707210"
 LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
 PDMats = "90014a1f-27ba-587c-ab20-58faa44d9150"
@@ -16,10 +15,14 @@ Tracker = "9f7883ad-71c0-57eb-9f7f-b5c9e6d3789c"
 Zygote = "e88e6eb3-aa80-5325-afca-941959d7151f"
 
 [compat]
-julia = "1"
-Zygote = "0.4.1"
-Tracker = "0.2.5"
+Combinatorics = "0.7"
+PDMats = "0.9"
+StatsFuns = "0.8"
+Distributions = "0.21.6"
 ForwardDiff = "0.10.6"
+Tracker = "0.2.5"
+Zygote = "0.4.1"
+julia = "1"
 
 [extras]
 Combinatorics = "861a8166-3701-5b0c-9a16-15d98fcdc6aa"